Ornamental Plant Germplasm Center
Assessment of heat tolerance among pansies, violas and related species
Rudbeckias in a long-term field performance study
Diversity among phlox flowers - Phlox is one of our priority genera
Celebrating the wonderful world of begonias during 2012!
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The Ornamental Plant Germplasm Center (OPGC) is part of the National Plant Germplasm System, a network of organizations and people dedicated to preserving the genetic diversity of crop plants.

The OPGC is a joint effort of the USDA-ARS and The Ohio State University's Department of Horticulture and Crop Science.  Financial support is provided through the Floriculture and Nursery Research Initiative of the ARS.

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Recent News

Painted Lady
 The principal pollinators for many of the OPGC plants are bumblebees; these workhorses do an excellent job in the often stressful conditions of a cage.  Unfortunately, bumblebees do not appear to polliinate phlox so we must enlist different pollinators.  In the wild, phlox are...
Arabis_patens
Is Arabis patens the rarest plant in Ohio? On a 24 May 2008 post in his Ohio Birds and Biodiversity blog , Jim McCormac of the Ohio Department of Natural Resources' (ODNR) Division of Wildlife asked this question. He had found only a couple of isolated populations in the shaded calcareous cliffs...
Phlox bifida in bloom
 The Spring of 2012 has been a bit unusual, with an early warming period that stimulated blooms in many plants. A subsequent cooling has kept many flowers open to the delight of pollinators and spectators alike.  The phlox bloom in the OPGC's nursery area has been spectacular.  The...
Joana
Joana Fernandes, a student from the Universidade Federal de Lavras (UFLA) in Brazil is spending 6 months at the OPGC working on a variety of projects, but focusing on the establishment of an in vitro backup collection of the clonal begonias. She arrived in January of 2012 and since then has...